157415988 has 72 divisors (see below), whose sum is σ = 410888800. Its totient is φ = 46766592.

The previous prime is 157415981. The next prime is 157416013. The reversal of 157415988 is 889514751.

It is a happy number.

157415988 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×157415988² = 49559586556032288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157415981) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64698 + ... + 67086.

Almost surely, 2^157415988 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 157415988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (205444400).

157415988 is an abundant number, since it is smaller than the sum of its proper divisors (253472812).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

157415988 is a wasteful number, since it uses less digits than its factorization.

157415988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2449 (or 2430 counting only the distinct ones).

The product of its digits is 403200, while the sum is 48.

The square root of 157415988 is about 12546.5528333483. The cubic root of 157415988 is about 539.9451110190.

The spelling of 157415988 in words is "one hundred fifty-seven million, four hundred fifteen thousand, nine hundred eighty-eight".